Tobacco pipe



March 27, 1934. w HEDRlKx f 1,952,862

TOBACCO PIPE Fiigd July 31, l'sasl BY @MWL Patented Mar. 27, 1934 UNITEDSTATES PATENT ori-ics TOBACCO PIPE William Hendrikx, Ulster Park, N. Y.,assignor to .Y William De Muth & Company, New York, N. Y., a corporationof New York Application July 31, 1931, Serial No. 554,168'

l Claims.

This invention relates to tobacco pipes and has particular reference toimprovements in pipes having metal tubular connections in the stems toprovide smoke passages, which are especially inducive to clean, drysmokes, and which avoid, as far as possible, any tendency to serve ascollecting means for tobacco juice and saliva.

The present invention has for its object to provide a pipe of thischaracter wherein the metal tubular connection is made in two sectionswhich telescope one within the other to establish a perfectly tightsmoke joint between the bowl and mouthpiece.

Another object of my invention is toV nx the separate sections of theconnection in the mouthpiece and pipe stem respectively, so as toestablish perfect smoke tight joints at these points.

Still another object of this invention is to provide one of the sectionsof the tubular connection with a smoke passage which is reduced indiameter towards the tip end for the purpose of preventing the salivafrom iiowing towards the bowl and mixing with the tobacco fumes to formtobacco juice.

have accomplished these objects by means of a construction andarrangement of parts hereinafter described, set forth in the appendedclaims and illustratively exemplified in the accompanying drawing inwhich: Figure 1 is a substantially longitudinal sectional view of a pipeembodying my improved metal tubular connection; Figure 2 is a sideelevational View of one embodiment of the tubular connection; and Figure3 is a similar view of a slightly modified form .f of construction.

Referring to the drawing, 10 is the bowl of a smoking pipe, 11 the sternand 12 the mouthpiece. As illustrated in Figure 1 the stem l1 is formedwith a bore 11a projecting from one end to a point short of the recessin the bowl, and in communication with the latter through a reducedpassage 13, the inner end of the mouthpiece is provided with a tenon 14which is received in the open end of the bore 11a.

The passage 13 in the form of the invention illustrated in Figure 1 isenlarged at its inner end and internally threaded to receive thethreaded end 15 of a spigot 16 which comprises a metal member having acollar 17, substantially midway of its length, abutting the end wall ofthe bore 11a, and a shank 18 projecting axially into the latter andhaving a rounded end, the spigot being provided with a uniform bore 19opening at the threaded end in the smaller portion of the reducedpassage 13 of the stem 11. In the modication shown in Figure 3 the endof the spigot is provided with a knurled surface 20 which is-cemented inthe enlarged end of the passage 13 of the stem.

The mouthpiece 12 is provided with a bore 21 which is enlarged in thetenon 14 and for a short distance into the body of the mouthpieceVitself to accommodate one end of a tubular metal piece 22 which iseither knurled and cemented into the tenon and mouthpiece, asillustrated in Figures 1 and 3, or provided with an external thread 23and screwed into an inner threaded portion of the enlarged portion ofthe bore 21, as illustrated in Figure 2. The tubular piece 22 is alsoprovided with an axial bore 24 which is arranged 70 .l in three steps,the first, at the outer end being of a diameter to very closely embracethe shank end of the spigot 16 and having a rounded seat to receive therounded end of the shank. The mid section of the bore 24 issubstantially smaller than that of the outer section and it terminatesshort of its mouthpiece end in a beveled shoulder 25 which opens intothe third section of the bore 24, the dimension of the latter sectionkbeing reduced as compared with the second section to correspond withthe dimension of the bore Vor smoke passage 2l, in the mouthpiece i2,into which it opens.

To assemble the pipe, according to the invention, the mouthpiece tenon14 with its projecting metal extension piece 22 is inserted into thebore 11a of the pipe stem 11 to a point where the inner end of the firstsection of the bore 24 is seated against the round end of the spigotshank 18. When the metal extension piece 22 has reached this point thetenon 14 will have been projected its full length into the bore of thestem 11 and the end of the mouthpiece will be seated against the end ofthe stem.

The wall of the bore in the outer section of the extension 22 embracesthe shank 18 very closely and the joint thus formed is leak proof,thereby preventing any nicotine or moisture from nding its way into thebore 11a of the stem, which as a consequence remains dry and clean. Thejoint made by the connection of the spigot Yand tubular extension wouldremain tight even if a strand of tobacco were to lodge in the seat ofthe extension because as stated above the wall or shell of the latter tssnugly over the shank 18 throughout its length.

According to the present invention, the construction and arrangement ofthe tubular section piece 22 and spigot 16 greatly strengthens the pipestem 11 and mouthpiece 12, making them practically rigid when assembled.

The through smoke passage 24 in the exten- .sion piece 22 and spigotdirects the smoke from the bowl 10 to contact with the cool metal wallof the spigot when the nicotine is caused to precipitate out and deposititself on the wall of the passage at the entrance thereof, adjacent thebowl. As a result the fresh smoke passing through the smoke passageremains dry since it does not come in contact with a saturated depositof saliva and nicotine, the dry smoke not being inducive to theformation of saliva in the mouth of the smoker. It has been found if apipe cleaner be inserted the'full length of the` smoke passage after thepipe has been in use for sometime, that only the extreme end of thecleaner will pick up any deposit, and what deposit is collected will befound to be of a dry powdery consistency containing practically nomoisture. This condition is further explained by the fact that anymoisture at all which may gather in the smaller section of the bore 24of the tubular extension 22 will ow into the next larger section, theangular wall or shoulder 25 preventing any gurgling or back flow alongthe mouthpiece.

A perfect leak proof joint is further insured by the cement used in theconnection between the spigot and the stem of the pipe and between themetal tube 22 and the mouthpiece 12, the cement used being of a specialmoisture resisting I claim:

1. A smoking pipe comprising a bowl portion, a stem, a mouthpieceremovably tted in the stem, and a telescoping tube fixed at its one endthrough the tenon bore in the mouthpiece, and detachably connected atthe other end to a spigot secured in the communicating bore between thebowl and stem, and partly projecting into the bore of the latter, saidtelescoping tube forming a continuous unbroken bore for the passage ofsmoke from said bowl through said mouthpiece, said bore being ofsuccessively decreasing diameter from said bowl to said mouthpiece.

- 2. A smoking pipe comprising a bowl portion, a stem, a mouthpieceremovably fitted in the stem, a spigot xed at one end inthe stem and atubular section attached at one end to the mouthpiece and slidablyconnected with the free end of the spigot to form a tight joint be*tween the latter and the tubular section, said telescoping tube forminga continuous unbroken bore for the passage of smoke from said bowlthrough said mouthpiece, said bore being of successively decreasingdiameter from said bowl to said mouthpiece.

3. A smoking pipe comprising a bowl portion,

and a stem portion having a bore in communica`d tion with the bowl, amouthpiece having a tenon removably tted in the bore of the stem, aspigot 4screwed and cemented into the smaller bore of the stem at oneend and projecting towards the mouthpiece at its free end, and a tubularsection iixed at one end in the mouthpiece and removably fitted aboutthe free end of the spigot to form a tight joint, said spigot andtubular section forming a telescoping tube having a continuous unbrokenbore of successively decreasing diameter from said bowl to saidmouthpiece.

4. A smoking pipe comprising a bowl portion and a stem portion having abore in communication with the bowl, the bore at the free end of thestem having a relatively larger diameter than the communicating borebetween the stem and bowl, a mouthpiece having a tenon removably tted inthe bore of the stem and being provided with a bore, the tenon end ofwhich is greater in diameter than the opposite end, a spigot screwed andcemented into the smaller bore of the stem, saidspigot comprising ametal tubular member with a threaded end, and at the opposite end asmooth convex shank, and having an exterior annular collar about its midportion, said collar abutting the inner end of the enlarged portion ofthe bore, and a tubular extension cemented at one end in the enlargedportion of the bore of the mouthpiece and projecting beyond the tenon tofit tightly about the portion of the spigot projecting into the enlargedbore of the stem, said spigot and tubular section forming a telescopingtube having a continuous unbroken bore of successively decreasingdiameter from said bowl to said mouthpiece.

5. A smoking pipe, as claimed in claim 4, in which the tubular extensionis provided with a bore arranged in three steps, the first, having thelargest diameter is concave at its inner end to embrace a similar proleat the free end of the spigot, the second, being of a smaller diameterand terminating in a conical shoulder which opens into the third andsmallest in diameter.

6. A smoking pipe as claimed in claim 4, in which the bores are coaxial,said bores permitting the insertion of any pipe cleaner for the removalof all nicotine deposits or any obstruction therein, and withoutdetaching any parts of said pipe.

'7. A smoking pipe as claimed in claim 4, in which the telescopingtubular extension has a constant external diameter with respect to itsaxis, the outer surface of said telescoping tubular extension beingspaced with respect to the larger l 4

